Unnamed system
2019-20 season ยท AU201920_09U
History
Tropical Low 09U developed in the Australian region and was monitored by the Bureau of Meteorology. Based on the available source material, the system was classified as a tropical low, meaning it did not reach tropical cyclone intensity during its lifetime. The low tracked through the region while being observed by BOM forecasters, though it did not achieve the sustained wind speeds required for formal cyclone categorisation.
As a tropical low, 09U would have produced areas of cloud, rainfall, and gusty winds in its vicinity. Such systems can still contribute to significant rainfall totals and localised flooding in affected areas, particularly across coastal and inland regions of northern Australia. However, the system did not make landfall as a named tropical cyclone, and no major cyclone-related damage or casualties were attributed to it reaching cyclone strength.
Tropical lows of this type are a routine feature of the Australian tropical wet season, often forming in the monsoon trough and either dissipating without intensification or occasionally developing into named cyclones. In this case, 09U remained below the cyclone threshold throughout its observed lifetime.
Sources: Bureau of Meteorology report
View full track data (19 observations)
| Date/Time (UTC) | Category | Position | Pressure | Wind |
|---|---|---|---|---|
| 2020-03-09 00:00:00 | 1 | -11.0, 113.0 | 1008 hPa | 13 km/h |
| 2020-03-09 06:00:00 | 1 | -11.2, 113.0 | 1007 hPa | 13 km/h |
| 2020-03-09 12:00:00 | 1 | -10.8, 113.8 | 1007 hPa | 13 km/h |
| 2020-03-09 18:00:00 | 1 | -11.2, 114.7 | 1005 hPa | 13 km/h |
| 2020-03-10 00:00:00 | 1 | -12.2, 116.0 | 1003 hPa | 10 km/h |
| 2020-03-10 06:00:00 | 1 | -13.0, 116.0 | 1003 hPa | 10 km/h |
| 2020-03-10 12:00:00 | 1 | -13.8, 116.5 | 1000 hPa | 15 km/h |
| 2020-03-10 18:00:00 | 1 | -14.6, 116.8 | 999 hPa | 18 km/h |
| 2020-03-11 00:00:00 | 1 | -15.4, 117.2 | 999 hPa | 18 km/h |
| 2020-03-11 06:00:00 | 1 | -16.4, 116.9 | 999 hPa | 18 km/h |
| 2020-03-11 12:00:00 | 1 | -17.3, 116.1 | 999 hPa | 18 km/h |
| 2020-03-11 18:00:00 | 1 | -18.2, 115.9 | 999 hPa | 18 km/h |
| 2020-03-12 00:00:00 | 1 | -18.9, 115.1 | 997 hPa | 21 km/h |
| 2020-03-12 06:00:00 | 1 | -19.8, 114.9 | 997 hPa | 21 km/h |
| 2020-03-12 12:00:00 | 1 | -20.8, 114.8 | 995 hPa | 23 km/h |
| 2020-03-12 18:00:00 | 3 | -22.0, 114.5 | 997 hPa | 21 km/h |
| 2020-03-13 00:00:00 | 2 | -22.8, 114.4 | 1000 hPa | 18 km/h |
| 2020-03-13 06:00:00 | 2 | -23.8, 114.5 | 1005 hPa | 13 km/h |
| 2020-03-14 00:00:00 | 2 | -26.9, 114.7 | 1005 hPa | 10 km/h |